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OpenBoard/src/core/UBPersistenceWorker.cpp

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/*
* Copyright (C) 2015-2018 Département de l'Instruction Publique (DIP-SEM)
*
* Copyright (C) 2013 Open Education Foundation
*
* Copyright (C) 2010-2013 Groupement d'Intérêt Public pour
* l'Education Numérique en Afrique (GIP ENA)
*
* This file is part of OpenBoard.
*
* OpenBoard is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3 of the License,
* with a specific linking exception for the OpenSSL project's
* "OpenSSL" library (or with modified versions of it that use the
* same license as the "OpenSSL" library).
*
* OpenBoard is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with OpenBoard. If not, see <http://www.gnu.org/licenses/>.
*/
#include "UBPersistenceWorker.h"
#include "adaptors/UBSvgSubsetAdaptor.h"
#include "adaptors/UBThumbnailAdaptor.h"
#include "adaptors/UBMetadataDcSubsetAdaptor.h"
UBPersistenceWorker::UBPersistenceWorker(QObject *parent) :
QObject(parent)
, mReceivedApplicationClosing(false)
{
}
void UBPersistenceWorker::saveScene(UBDocumentProxy* proxy, UBGraphicsScene* scene, const int pageIndex)
{
PersistenceInformation entry = {WriteScene, proxy, scene, pageIndex};
saves.append(entry);
mSemaphore.release();
}
void UBPersistenceWorker::readScene(UBDocumentProxy* proxy, const int pageIndex)
{
PersistenceInformation entry = {ReadScene, proxy, 0, pageIndex};
saves.append(entry);
mSemaphore.release();
}
void UBPersistenceWorker::saveMetadata(UBDocumentProxy *proxy)
{
PersistenceInformation entry = {WriteMetadata, proxy, NULL, 0};
saves.append(entry);
mSemaphore.release();
}
void UBPersistenceWorker::applicationWillClose()
{
qDebug() << "applicaiton Will close signal received";
mReceivedApplicationClosing = true;
mSemaphore.release();
}
void UBPersistenceWorker::process()
{
qDebug() << "process starts";
mSemaphore.acquire();
do{
PersistenceInformation info = saves.takeFirst();
if(info.action == WriteScene){
UBSvgSubsetAdaptor::persistScene(info.proxy, info.scene, info.sceneIndex);
emit scenePersisted(info.scene);
}
else if (info.action == ReadScene){
emit sceneLoaded(UBSvgSubsetAdaptor::loadSceneAsText(info.proxy,info.sceneIndex), info.proxy, info.sceneIndex);
}
else if (info.action == WriteMetadata) {
if (info.proxy->isModified()) {
UBMetadataDcSubsetAdaptor::persist(info.proxy);
emit metadataPersisted(info.proxy);
}
}
mSemaphore.acquire();
}while(!mReceivedApplicationClosing);
qDebug() << "process will stop";
emit finished();
}